I bought a car that has these wheel locks on all 16 studs. The one in the image isn't warped, they're all the same. I don't have the key. Any idea on what pattern or brand these are? I tried wedging 10-12mm hex keys (the long ones you can torque) in there. 10mm was too small 11mm slipped 12mm was too big.

http://i1048.photobucket.com/albums/...ps0d28b429.jpg

 

Find a socket that is slightly to small and hammer it over the outside of the entire thing. Or you could get a specialty wheel lock removal socket.

 

Like an "easy out", but for grabs the outside of the bolt/nut instead of needing to drill a hole first.